This Standard is the modified adoption IEC 60849:1998, which applies to sound reinforcement and distribution systems to be used to effect a rapid and orderly mobilization of occupants in an indoor or outdoor area in an emergency situation. It applies to systems using tone signals and to systems with voice announcements for emergency purposes.

This International Standard applies to sound reinforcement and distribution systems to be used to effect a rapid and orderly mobilization of occupants in an indoor or outdoor area in an emergency situation. This standard applies to systems using tone signals and to systems with voice announcements for emergency purposes. NOTES 1 The use of the system for normal sound reinforcement and distribution systems purposes under nonhazardous circumstances is not excluded. 2 It is recommended that the system, when used for emergency purposes, should form part of a complete facility (equipment, operating procedures and training programmes) for the control of emergencies. 3 Sound systems for emergency purposes may be the subject of approval by relevant authorities.

First published as part of AS 2220-1978.Revised and redesignated in part as AS 2220.1-1989.Revised and redesignated as AS 60849-2004.Reconfirmed 2016. First published as part of AS 2220-1978. Revised and redesignated in part as AS 2220.1-1989. Revised and redesignated as AS 60849-2004.